1 files changed, 105 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-core-lib/openecomp-facade-lib/openecomp-facade-core/src/main/java/org/openecomp/core/factory/api/AbstractComponentFactory.java b/openecomp-be/lib/openecomp-core-lib/openecomp-facade-lib/openecomp-facade-core/src/main/java/org/openecomp/core/factory/api/AbstractComponentFactory.java
new file mode 100644
index 0000000000..9cd7749f55
--- /dev/null
+++ b/openecomp-be/lib/openecomp-core-lib/openecomp-facade-lib/openecomp-facade-core/src/main/java/org/openecomp/core/factory/api/AbstractComponentFactory.java
@@ -0,0 +1,105 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.factory.api;
+
+import org.openecomp.core.factory.FactoryConfig;
+import org.openecomp.core.factory.impl.AbstractFactoryBase;
+import org.openecomp.core.utilities.CommonMethods;
+import org.openecomp.sdc.common.errors.CoreException;
+import org.openecomp.sdc.common.errors.ErrorCategory;
+import org.openecomp.sdc.common.errors.ErrorCode;
+
+import java.util.Map;
+
+public abstract class AbstractComponentFactory<I> extends AbstractFactory<I> {
+
+  static {
+    Registry registry = new RegistryImpl();
+    InitializationHelper.registerFactoryMapping(registry);
+  }
+
+  interface Registry {
+    void register(String factory, String impl);
+  }
+
+  private static class RegistryImpl implements Registry {
+    @Override
+    public void register(String factory, String impl) {
+      AbstractFactoryBase.registerFactory(factory, impl);
+    }
+  }
+
+  static class InitializationHelper {
+
+
+    private static boolean isRegistered = false;
+
+    private InitializationHelper() {
+    }
+
+    static synchronized boolean registerFactoryMapping(Registry registry) {
+
+      boolean done = !isRegistered;
+
+      if (!isRegistered) {
+        registerFactoryMappingImpl(registry);
+        isRegistered = true;
+      }
+
+      return done;
+    }
+
+    private static void registerFactoryMappingImpl(Registry registry) {
+      Map<String, String> factoryMap = FactoryConfig.getFactoriesMap();
+
+      try {
+        for (Map.Entry<String, String> entry : factoryMap.entrySet()) {
+          String abstractClassName = entry.getKey();
+          String concreteTypeName = entry.getValue();
+
+          if (CommonMethods.isEmpty(concreteTypeName)) {
+            throw new CoreException(
+                new ErrorCode.ErrorCodeBuilder().withId("E0003")
+                    .withMessage("Missing configuration value:" + concreteTypeName + ".")
+                    .withCategory(ErrorCategory.SYSTEM).build());
+
+          }
+
+          registry.register(abstractClassName, concreteTypeName);
+        }
+      } catch (RuntimeException exception) {
+        throw exception;
+      } catch (Exception exception) {
+        throw new RuntimeException(exception);
+      }
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T> Class<T> unsecureCast(Class<?> cls) {
+      return (Class<T>) cls;
+    }
+
+    private static String nameOf(Class<?> clazz) {
+      return (clazz != null) ? clazz.getName() : "null";
+    }
+  }
+
+}